AT1395

Features:

• Low start-up power supply voltage :1.4V(CH5)
• Wide supply voltage range from 2.5V to 7V (CH1~5)
• High speed operation is possible: Maximum 1 MHz
• Supports for up,down, flyback and up/down SEPIC conversion
• Supports for inverting conversion (CH4)
• Synchronized rectification on CH1,CH2
• Selectable P-Ch/N-CH MOSFETdriver
• Built-in On/Off function
• Built-in Short-Circuit Protection.



Application

• Digital Cameras
• CCD Imaging Devices
• Camcorders



Pinout




Specifications

Parameter	Symbol	Condition	Rating		Unit
			Min	Max
Power supply voltage	Vcc	--	--	7	V
Output current	Io	Output pin	--	20	mA
Output peak current	Io	Output pin, Duty5%	--	200	mA
Power dissipation	PD	Ta25 (LQFP-48P)	--	860	mW
Operation temperature	Topr	--	-30	85
Storage temperature	Tstg	--	-55	125

Description

The AT1395 is a 5-channel PWM DC/DC control IC for low voltage applications with a soft start function and short circuit detection function. This IC AT1395 is ideal for up conversion, down conversion, inverting conversion (CH4 only) and up/down conversion (using a step-up/step-down SEPIC or Zeta system with free input and output settings). 5
channels can be built in the LQFP48 package, each channel be controlled, and soft-start.

The AT1395 include one comparator to generate low-battery warning outputs. It also contains two high efficiency topology by using synchronous rectification PWM (It can be disable by floating OUT1_2,OUT2_2.)